TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.13.3.050
TI  - Noncoplanar magnetic orders and gapless chiral spin liquid on the kagome lattice with staggered scalar spin chirality
PY  - 2022/09/05
UR  - https://scipost.org/SciPostPhys.13.3.050
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 13
IS  - 3
SP  - 050
A1  - Oliviero, Fabrizio
AU  - Sobral da Silva, João Augusto
AU  - Andrade, Eric
AU  - Pereira, Rodrigo G.
AB  - Chiral three-spin interactions can suppress long-range magnetic order and stabilize quantum spin liquid states in frustrated lattices. We study a spin-1/2 model on the kagome lattice involving a staggered three-spin interaction $J_\chi$ in addition to Heisenberg exchange couplings $J_1$ on nearest-neighbor bonds and $J_d$ across the diagonals of the hexagons. We explore the phase diagram using a combination of a classical approach, parton mean-field theory, and variational Monte Carlo methods. We obtain a variety of noncoplanar magnetic orders, including a phase that interpolates between cuboc-1 and cuboc-2 states. In the regime of dominant $J_{\chi}$, we find a classically disordered region and argue that it may harbor a gapless chiral spin liquid with a spinon Fermi surface. Our results show that the competition between the staggered three-spin interaction and Heisenberg exchange interactions gives rise to unusual ground states of spin systems.
ER  -

@Article{10.21468/SciPostPhys.13.3.050,
	title={{Noncoplanar magnetic orders and gapless chiral spin liquid on the kagome lattice with staggered scalar spin chirality}},
	author={Fabrizio Oliviero and João Augusto Sobral and Eric C. Andrade and Rodrigo G. Pereira},
	journal={SciPost Phys.},
	volume={13},
	pages={050},
	year={2022},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.13.3.050},
	url={https://scipost.org/10.21468/SciPostPhys.13.3.050},
}